Research Article

Geniposide, a Principal Component of Gardeniae Fructus, Protects Skin from Diesel Exhaust Particulate Matter-Induced Oxidative Damage

Figure 5

Effects of GFE on tight junction protein expressions in DEP-stimulated HaCaT cells. (a) Cells were pretreated with GFE (10, 100 μg/ml) or ascorbic acid (1 mM) for 1 h and then stimulated with DEP (100 μg/ml) for 24 h. The expressions of occludin and claudin were determined by western blot. (b) Densitometry analysis of occludin and claudin expression. Data are presented as mean ± SD (n = 3). vs. normal controls, vs. DEP treated cells.
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